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【简答题】
京剧:是皮黄腔的代表剧种,形成于清代, 进京带去了京剧发展的开始, 吸收了京腔(弋阳腔)和 并结合 形成了京剧,老生三杰的出现,代表了京剧的立足,四大名旦的出现,代表了京剧的辉煌。
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参考答案:
举一反三
【判断题】斜楔夹紧机构的楔角α 越小,则增力比越大,自锁性能越好。( )
A.
正确
B.
错误
【单选题】表示金属材料屈服点的符号是:
A.
σe
B.
σ S
C.
σ b
【单选题】Why are RDAs regularly updated?
A.
New discoveries in the science of nutrition are constantly being made.
B.
Americans' diets are constantly changing.
C.
As people age, their nutritional needs change.
D.
Very little is currently known about nutrition.
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σS 或σY
C.
σb
D.
σ-1
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σs
C.
σb
D.
σ-1
【单选题】表示金属材料屈服点的符号是
A.
σb
B.
σe
C.
σs
D.
σ-1
【单选题】Answer the questions about the words and expressions. If someone nags someone else, are they (a) encouraging them, or (b) criticizing them constantl
A.
T hey are  encouraging them constantly.
B.
They are criticizing them constantly.
【单选题】It rained hard for several days. _____, a flood occurred in South China this summer. [     ]
A.
Constantly
B.
Firmly
C.
Consequently
D.
Deliberately
【单选题】表示金属材料屈服点的符号是( )
A.
σ e
B.
σ S
C.
σ b
D.
σ p
【单选题】A turbocharged diesel engine will have an intake manifold pressure____________.
A.
constantly decreasing as engine load increase
B.
constantly increasing as the amount of supercharging increases
C.
approximately equal to exhaust manifold pressure at all times
D.
approximately equal to atmospheric pressure at all times
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